private void Build() { genGrammar.Text = ""; genLexer.Text = ""; genParser.Text = ""; Parser parser = new Parser(); Generator generator = new Generator(); Node<NodeType> node; try { node = parser.Parse(grammarText.Text); Grammar grammar = generator.BuildGrammar(node); _grammarName = grammar.Name; RefreshGrammar(grammar); genLexer.Text = generator.GenerateLexer(grammar); genParser.Text = generator.GenerateParser(grammar); Compile(); } catch (Exception exception) { _parser = null; _parseMethod = null; MessageBox.Show(exception.Message); } }
public void Sql() { var parser = new Core.GrammarGrammar.Parser(); var node = parser.Parse(@"Sql defs Statement : select StartOrFieldList StartOrFieldList : star | FieldList FieldList : FieldDef [comma FieldDef] FieldDef : [Agg openBracket] Field [closeBracket] Agg : count | min | max | avg Field : [openSquare] Text [closeSquare] texts Text : "".*"" keywords select: select count: count min: min max: max avg: avg punctuation star: ""*"" comma: , openBracket: ( closeBracket : ) openSquare: ""["" closeSquare: ""]"""); var generator = new Generator(); var builder = new Builder(); string nodeTree = generator.GenerateNodeTree(node); var grammar = generator.BuildGrammar(node); string actual = GenerateAndBuildParser(grammar, "select abc def ghi"); }
private void Run(string grammarDef, string input, string expected) { var parser = new Core.GrammarGrammar.Parser(); var generator = new Generator(); var builder = new Builder(); var node = parser.Parse(grammarDef); var tree= generator.GenerateNodeTree(node); var grammar = generator.BuildGrammar(node); string actual = GenerateAndBuildParser(grammar, input); Assert.That(actual, Is.EqualTo(expected)); }
private string GenerateAndBuildParser(Grammar grammar, string text) { Generator generator = new Generator(); Builder builder = new Builder(); string lexerDef = generator.GenerateLexer(grammar); string parserDef = generator.GenerateParser(grammar); var assembly = builder.Build(lexerDef, parserDef); object parser = Activator.CreateInstance(assembly.GetType("Xxx.Parser")); object walker = Activator.CreateInstance(assembly.GetType("Xxx.Walker")); var node = parser.GetType().GetMethod("Parse").Invoke(parser, new object[] { text }); return (string)walker.GetType().GetMethod("NodesToString").Invoke(walker, new[] { node }); }